If Noboru Ishiguro were to return to Macross, it wouldn't be surprising to see environmental, spiritual, or unconventional themes with him also. The last three new anime Ishiguro supervised or directed (Totoi, Kimera, Toukyou Jusshouden) were about a boy saving seals from extinction, a yaoi-manga-based erotic alien-human horror story for female viewers, and mankind's salvation from demons from an alternate realm, respectively.